Wuhan Wei Austrian three high and Electrical Equipment Co., Ltd. - WAAS-500A DC circuit breaker safety second characteristic tester main features: 1) master part using high-performance industrial computer, the Windows XP operating system, real-time display of the parameters of graphs and numerical . 2) keyboard, touchpad input (external USB mouse); 5.7-inch TFT true color LCD display. Simple, beautiful interface, all parameters at a glance. 3) the switch constant current control technology, new power devices, 1A ~ 500A set their own constant current output, high precision constant current, load capacity, can be a long time to stabilize. 4) applies to the rated current of 1A to 500A DC circuit breaker safety second characteristic test, safety second characteristic 6A ~ 100A DC fuse can be used to test. 5) measurement of the whole point of the test or snapshot test, response speed, high precision, safety and reliability. 6) The instrument has overheat, overcurrent, overvoltage protection, electromagnetic compatibility, strong anti-interference ability. 7) test management software can automatically complete the DC circuit breaker safety second characteristic test, and analysis of the test data to map out the circuit breaker protected characteristic curve (Ann curve), as well as generate report output. 8) IPC comes with 4G memory space can be stored test record, and is equipped with two USB ports to facilitate the extraction of the test records and print. 9) The instrument uses the integrated design, easy to carry. Main functions: overcurrent protection circuit breaker standards in accordance with GB10963-1999 for household and similar provisions breaker tripping characteristic test should be done. 1) time - current characteristic test (1) starting from cold, through the circuit breaker to 1.13In (the current agreement is not tripping current) to the agreed time, the circuit breaker should not trip. Within 5s, the current stable rose 1.45In (conventional tripping current) current, the circuit breaker should trip within the agreed time. (2) starting from cold, the circuit breaker at all levels through 2.55In current off time should be more than 1s, and less than or equal to the rated current of 63A circuit breaker disconnect time should be less than 60s for the rated current 63A circuit breaker disconnect should be less than the 120s. 2) Test ① breaker type B: starting from cold, the circuit breaker at all levels through 3In the current off-time should be more than 0.1s; then starting from cold, the circuit breaker instantaneous trip all levels through 5In the current off-time should be less than 0.1s. ② For the C-type circuit breakers: starting from cold, the breaker of all levels through 5In the current off-time should be more than 0.1s; then, starting from cold, the breaker of all levels through to 10In current off-time should be less than 0.1s. ③ D-type circuit breakers: starting from cold, the circuit breaker at all levels through 10In the current off-time should be more than 0.1s; then starting from cold, on the circuit breaker at all levels through to 50In the current off-time should be less than 0.1s. Specifications Operating voltage: AC220V, 5